我对 Bash 脚本很陌生,目前,根据用户的操作系统,我正在努力创建一个安装程序来安装 Docker 客户端和 Docker-Compose。此脚本不打算在每个操作系统上运行,其范围仅适用于 Ubuntu 16.04、18.04、CentOS 7 和 8。
我已经编写了下面的代码来验证用户的操作系统并开始安装过程(目前,我正试图让它适用于Ubuntu 18.04):
################
### Check OS ###
################
if [ -f /etc/os-release ]; then
# freedesktop.org and systemd
. /etc/os-release
OS=$NAME
VER=$VERSION_ID
RESULT="$OS $VER"
printf -v $RESULT "Ubuntu 18.04"
elif type lsb_release >/dev/null 2>&1; then
# linuxbase.org
OS=$(lsb_release -si)
VER=$(lsb_release -sr)
elif [ -f /etc/lsb-release ]; then
# For some versions of Debian/Ubuntu without lsb_release command
. /etc/lsb-release
OS=$DISTRIB_ID
VER=$DISTRIB_RELEASE
elif [ -f /etc/debian_version ]; then
# Older Debian/Ubuntu/etc.
OS=Debian
VER=$(cat /etc/debian_version)
elif [ -f /etc/SuSe-release ]; then
# Older SuSE/etc.
...
elif [ -f /etc/redhat-release ]; then
# Older Red Hat, CentOS, etc.
...
else
# Fall back to uname, e.g. "Linux <version>", also works for BSD, etc.
OS=$(uname -s)
VER=$(uname -r)
fi
echo $RESULT
#################################
### Ubuntu 18.04 Installation ###
#################################
if [ $RESULT = "Ubuntu 18.04" ]; then
echo "Installing on Ubuntu 18.04"
sudo apt update
sudo apt install apt-transport-https ca-certificates curl software-properties-common -y
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable"
sudo apt update
apt-cache policy docker-ce
sudo apt install docker-ce
sudo systemctl status docker
sudo curl -L https://github.com/docker/compose/releases/download/1.21.2/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose
docker-compose --version
else
echo "not working"
fi
在Ubuntu 18.04上运行上述程序的结果如下:
Ubuntu 18.04
./test.sh: line 46: [: too many arguments
not working
如何将$RESULT的输出与字符串进行比较?欢迎提出任何建议或建议!
$RESULT
包含空格,请将其引号以避免分词:
if [ "$RESULT" = "Ubuntu 18.04" ]; then